Generator Repairs · Gauteng
Generator Repairs Across Gauteng
ProService Generator Repairs provides onsite generator repairs across Gauteng for petrol, diesel, standby, commercial and industrial generators. We work on smaller portable units as well as larger generator systems used by homes, businesses and industrial sites.
Specialist visits are booked as diesel generator repairs, petrol generator repairs, commercial generator repairs or industrial generator repairs. Diagnosis starts with generator fault finding, and the visit itself is arranged through generator callouts.
The Service
General generator repairs across Gauteng
This is the general generator repair page for Gauteng. If the set will not start, starts but produces no power, overheats, leaks, or throws a controller alarm, diagnosis starts here. Specialist pages cover diesel-only work, petrol frames, AVR, control panels, fuel systems and rewinding in more detail.
Faults usually sit in one of a few systems: starting and batteries, fuel delivery, charging, the control panel, voltage/AVR, alternator output, cooling, oil and leaks, or broader electrical and mechanical wear. We test before we replace parts.
Work is done onsite across Johannesburg, Pretoria, Centurion, Midrand, Sandton and the wider province. Residential standby, commercial backup and industrial sets are all in scope. Brands we commonly see include Cummins, Perkins, Caterpillar, Deutz, Volvo, John Deere, Generac and others.
Every repair begins with diagnosis and a written quote. We explain the fault, what we will inspect or adjust, and whether a part needs repair or replacement — then test the set before we leave.
Generator not working?
Call or WhatsApp 082 057 4605 for onsite diagnosis across Gauteng.
Common Faults
What generator faults do you repair?
Starting and batteries
No crank, click-then-silence, or a failed auto-start. See Generator Not Starting for the fault-first walkthrough.
Fuel delivery
Empty, stale or contaminated fuel, blocked filters, lift pumps and injectors. Diesel detail is on Fuel System Repairs.
Charging and batteries
A battery that goes flat between outages often points at the charger or terminals, not only the battery itself.
Control panels
AMF/ATS alarms, start failure, shutdowns and sensor faults. Dedicated work is on Control Panel Repairs.
Voltage and AVR
No output, low voltage or hunting voltage while the engine runs. See AVR Repairs and Not Producing Power.
Alternator output
Breakers, excitation and winding tests come after we prove the AVR is not the cause. Rewinding is a separate job.
Overheating and cooling
High-temperature shutdowns, radiators, coolant and canopy airflow. See Generator Overheating.
Oil, leaks and mechanical
Oil leaks, belts, bearings, couplings and unusual noise — inspected onsite before any strip-down.
Electrical faults
Output breakers, changeover contacts and wiring faults that look like a “dead generator” while the engine is healthy.
Who We Support
Residential, commercial and industrial generators
Residential Standby
Home standby generators kept ready for the next outage, from small petrol units upward.
Offices
Backup power for office parks and business premises that cannot afford downtime.
Commercial Premises
Commercial backup systems repaired onsite to keep trading through an outage.
Industrial Applications
Large diesel sets and industrial power plants serviced by technicians trained across all sizes.
Repair Process
How a generator repair works
- 01
Contact
Call, WhatsApp or send a quote request for a visit in Gauteng.
- 02
Generator details
Send the suburb, make, model, kVA, fuel type, the fault or alarm, and the controller model if you can see it. Photos of the set and the data plate can go on WhatsApp.
- 03
Arrange the visit
A time is agreed from the diary. A same-day slot is offered only when one is open, and it is confirmed on the call.
- 04
Inspect and diagnose
The technician inspects the generator on site and identifies the likely fault or the service that is due.
- 05
Explain the work
The findings and the proposed repair or service are explained before parts are changed.
- 06
Complete approved work
Repairs or servicing then follow the scope you approve.
Why Choose Us
Why Gauteng trusts our repair team
01
Root-cause diagnosis first
We never guess or swap parts hoping to find the fault. Systematic testing finds the real problem — saving you money.
02
Common parts, confirmed on the call
Some visits can be finished with parts already carried for common faults. If the part is not on the van, that is said before it is ordered.
03
Small sets and large sets
Work covers portable petrol units and larger diesel standby sets. The brand is identified from the set on site. A listed brand is not a claim that every model can be repaired.
04
Workmanship guarantee
Workmanship is warranted for 90 days, as set out in our terms. If a related fault recurs, we return to inspect and rectify it.
Brands We Service
- Cummins
- Perkins
- Caterpillar
- Deutz
- Volvo
- John Deere
- Generac
- Kohler
- Wilson
- FG Wilson
- Olympian
- Sdmo
Google reviews of ProService Generator Repairs
Google Review
When our main plant dropped output voltage, they arrived with advanced diagnostics and identified a burnt stator that our previous contractor missed. They execute permanent, robust repairs every time.
Google Review
First visit, fixed permanently. Great skills.
Common Questions
Generator repairs — questions
What generator faults do you repair?
Starting, fuel delivery, batteries and charging, control panels, voltage and AVR, alternator output, overheating and cooling, oil leaks, and electrical or mechanical faults. Specialist pages cover diesel, petrol, AVR, panels, fuel systems and rewinding in more depth.
Can you diagnose a generator onsite?
Yes. Diagnosis is done at your premises across Gauteng. We test the starting circuit, fuel, cooling, controller and output before quoting a repair.
What happens during generator fault finding?
We confirm what the set is doing, test the relevant system, explain the cause, and give a written quote. Adjustment, repair or replacement is chosen after that — not before.
Still unsure what the fault is? Call or WhatsApp 082 057 4605 for onsite diagnosis.
Related Services
Other generator services
- Generator Fault FindingDiagnose the cause before parts are changed
- Generator GuidesPractical background on servicing and ratings
- Repair or ReplaceComparing a quote with another set
- Commercial Generator RepairsOffices, retail and complexes
- Industrial Generator RepairsLarger diesel and heavy standby
- Repairs Near MeOnsite repairs across Gauteng
- Emergency CalloutsUrgent breakdown assistance
- Generator ServicingScheduled individual service
- Diesel Generator RepairsStandby and commercial diesels
- Control Panel RepairsAMF / ATS controllers
- AVR RepairsVoltage and output regulation
- Fuel System RepairsFilters, pumps and injectors
- Generator Not StartingWill not start, even in manual
- Not Producing PowerEngine runs, no voltage
- Petrol Generator RepairsHome and portable petrol sets
- Gas Generator RepairsLPG and natural-gas standby
- Generator CalloutsHow a site visit is booked
- ATS RepairsAutomatic transfer faults
- Alternator RepairsNo output once the engine runs
- Repair or ReplaceHow a quoted repair is compared with another set
Common Problems
Faults diagnosed on a repair visit
Service Areas
Generator repairs across Gauteng
Generator repairs are available across all Gauteng areas including Johannesburg, Pretoria, Sandton, Midrand, Centurion, Randburg, Roodepoort, Kempton Park, Boksburg, Benoni, Germiston, Alberton, Fourways, and surrounding regions.
What to send before we attend
ProService Generator Repairs confirms an onsite visit from these details. Send what you have. A missing model number does not stop the booking.
- Location
- The suburb or site, so the visit can be booked in the right area.
- Make and model
- The generator brand and model, if they are known.
- kVA
- The size printed on the data plate.
- Fuel type
- Diesel, petrol, LPG, natural gas, or dual-fuel.
- Controller model
- The module name on the panel, when it is visible.
- Fault or alarm
- What the set does, and any text on the screen.
- Photos
- The generator, the data plate, and the controller or alarm. Send these on WhatsApp.
Book a Repair
Generator Not Running?
Call or WhatsApp 082 057 4605 for onsite diagnosis across Gauteng. Emergency callouts are available, with same-day appointments subject to availability.
- Call
- 082 057 4605
- Message us on WhatsApp